Qt: QComboBox

Qt: QComboBox

QComboBox *comboBox = new QComboBox();

comboBox->addItem(QObject::tr("Red"), Qt::red);

...

QObject::connect(comboBox, SIGNAL(currentIndexChanged(int)), this, SLOT(changePenColor()));

QPen pen;

QColor color = comboBox->itemData(comboBox->currentIndex(), Qt::UserRole).value<QColor>();

pen.setColor(color);